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PHY 104 PHY 104 Past Questions Objective Question

Question

The diagram shows white light passing through a prism. Which of the following gives colours in the correct order from A to B?
Options
A Red, green, violet
B Red, violet, green
C Violet, red, green
D Violet, green, red
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

White light is dispersed by a prism into its constituent colors. The order of colors from the top (least deviated) to the bottom (most deviated) is Red, Orange, Yellow, Green, Blue, Indigo, Violet (ROYGBIV). So from A (bottom) to B (top), the order is Violet, Green, Red. Option D.

Hint

Recall the order of colors in the visible spectrum and how a prism disperses light.

Question Info